REMOTE SUPPORT OF LOAD LIFTING MACHINE Russian patent published in 2019 - IPC B66C23/78 

FIELD: machine building.

SUBSTANCE: invention relates to lifting-and-conveying machine building, namely, to self-propelled load lifting machines. Remote support of load lifting machine, during machine operation on soils with insufficient bearing capacity as support plate, comprises a screw with a conical tip screwed into the ground and a helical surface elevation angle less than the friction angle of this surface on the ground. Remote support is equipped with a screw rotation drive providing its supply to the ground together with the feed drive without chips separation.

EFFECT: higher stability of hoisting machines operating on soils with low bearing capacity and prevention of accident.

1 cl, 1 dwg